The future is electric

AVL Inverter TS™

The AVL Inverter TS enables the validation of the inverter already in an early development phase and optimizes the integration with all other components in the electrified powertrain.

Solution Sheet

AVL_SET_Gen5_1_2_Für_Cellum_freigestellt

Keyfacts

Product phase

Development
Validation

UUT

Inverter
DC/DC Converter

Modularity

1 UUT with 3ph oder 6ph e-motor
1 UUT with 2x 3ph e-motor
2 UUT with 2x 3ph e-motor

Motor models

PMSM
IM
EESM

Your Challenge

High voltage components in electric powertrains require dedicated testing methods and tools. The traction inverter is a key component in electric propulsion systems as it controls all driving conditions and is part of safety-critical vehicle functionalities. Power electronics in combination with a high level of signal complexity require an appropriate test methodology and the use of adequate testing equipment.

Our Solution

The AVL Inverter TS enables the validation of the inverter already in an early development phase and optimizes the integration with all other components in the electrified powertrain. We have designed a test environment, where all functionalities and failure modes can be optimized, tested and pre-calibrated efficiently. Compared to testing in prototype vehicles, this not only results in optimized processes but significant time savings.

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Highlights

Worldwide reliable and reproducible test results
Fully comprehensive, accompanying test methodology development
Flexible, accurate and fast mapping of all common motor concepts
Emulating fault situations and testing the inverter behavior
Low connected loads, large active power
Future-proof through the coverage of high voltage levels
Smallest footprint thanks to customer-oriented configuration
Use of the original software and parameters in the inverter

Customer Voice

“We make sure that new cars drive longer and longer in the virtual world, before we need actual prototypes. That increases the flexibility in development, accelerates the processes and reduces costs on top of that.”
(Manu Saale, Die Welt, 27.11.2016)

Manu Ramachandra Saale
Managing Director and CEO, Mercedes-Benz Research and Development India Pvt. Ltd. Daimler AG

Measuring Inverter Efficiency

The efficiency of the inverter in an electric powertrain has a direct influence on the vehicle’s range and the required battery capacity. Today, the efficiency of the drive inverter is still measured on a test bed in conjunction with a real e-motor. The measurement procedure is quite involved and takes a lot of time (up to 30 hours per measurement plot) since each individual operating point must be mechanically stabilized. The e-motor also needs to be thermally stable if reproducible results are to be obtained.

In addition, inaccuracies are present due to the adaptation of the e-motor and influences resulting from its production tolerances if the measurements are not always conducted with the same motor. Precise e-motor emulation enables the efficiency map of an inverter to be measured within just a few minutes: With exact reproducibility and without the undesired influences of a real e-motor.

More Test Cases

Our Sales Team

Sales

For further information and reference solutions please contact our Sales Team:

Mail: AVL SET Sales

Phone: +49 7522 91609 0